Initial VIPR
4.0300
Registry seed
Current VIPR
3.9784
After latest rated game
Net Movement
-0.0516
Current minus initial
Record
3-9
25% win rate · 12 rated games
Storyline
William Danny Webster entered VIPR with an initial registry rating of 4.0300. Across 12 rated doubles games, the player went 3-9 and moved -0.0516, finishing at 3.9784.
Why It Moved
AI-generated explanation: The 3-9 record produced +0.0388 from wins and -0.0904 from losses, for a net move of -0.0516. The biggest single-game impact was +0.0156 against Timothy DeMaria as partner and Patrick Wilson / Dan Civitarese as opponents. In game #3 on 2026-07-02, the player's team was the lower-rated team, so the win carried a larger gain: player team 4.0381 vs opponent team 4.2586.
Partner Chemistry
Partnership patterns are starting to emerge.
William's most common partner signals so far: Chris Donahue (1-0, 100%), Jerry Visconti (1-0, 100%), Timothy DeMaria (1-0, 100%), Craig Narod (0-1, 0%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Streaks & Rivalries
Rivalry
William has faced Jerry Stotts 3 times - record: 2-1. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 1-3 | 4.0300 | 4.0188 | -0.0112 |
| 2026-07-09 | 0-4 | 4.0188 | 3.9800 | -0.0388 |
| 2026-07-16 | 2-2 | 3.9800 | 3.9784 | -0.0016 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-02 | Loss | 9-11 | Dan Civitarese | Patrick Wilson / Patrick Lee | 4.0300 | -0.0134 | 4.0166 |
| 2 | 2026-07-02 | Loss | 9-11 | Patrick Lee | Dan Civitarese / Timothy DeMaria | 4.0166 | -0.0049 | 4.0117 |
| 3 | 2026-07-02 | Win | 11-2 | Timothy DeMaria | Patrick Wilson / Dan Civitarese | 4.0117 | +0.0156 | 4.0273 |
| 4 | 2026-07-02 | Loss | 2-11 | Patrick Wilson | Patrick Lee / Timothy DeMaria | 4.0273 | -0.0085 | 4.0188 |
| 5 | 2026-07-09 | Loss | 5-11 | Mark Burkowski | Craig Narod / Martin Brady | 4.0188 | -0.0119 | 4.0069 |
| 6 | 2026-07-09 | Loss | 5-11 | Martin Brady | Craig Narod / Daren Haskell | 4.0069 | -0.0082 | 3.9987 |
| 7 | 2026-07-09 | Loss | 5-11 | Craig Narod | Mark Burkowski / Daren Haskell | 3.9987 | -0.0088 | 3.9899 |
| 8 | 2026-07-09 | Loss | 7-11 | Daren Haskell | Mark Burkowski / Martin Brady | 3.9899 | -0.0099 | 3.9800 |
| 9 | 2026-07-16 | Loss | 8-11 | Ken Vallance | Jerry Visconti / Pete Nikolakakis | 3.9800 | -0.0123 | 3.9677 |
| 10 | 2026-07-16 | Loss | 8-11 | Pete Nikolakakis | Jerry Stotts / Chris Donahue | 3.9677 | -0.0125 | 3.9552 |
| 11 | 2026-07-16 | Win | 11-7 | Chris Donahue | Ken Vallance / Jerry Stotts | 3.9552 | +0.0148 | 3.9700 |
| 12 | 2026-07-16 | Win | 11-7 | Jerry Visconti | Jerry Stotts / Pete Nikolakakis | 3.9700 | +0.0084 | 3.9784 |
Formula Homework
These rows show the team ratings used in the adjustment calculation. The computed delta is the signed rating change produced by the current v0.6 formula.
| # | Player Team ( AVG ) | Opponent Team ( AVG ) | Winner-Loser VIPR Diff | Computed Delta |
|---|---|---|---|---|
| 1 | 4.2109 | 4.0860 | -0.1249 | -0.0134 |
| 2 | 4.0456 | 4.2419 | +0.1962 | -0.0049 |
| 3 | 4.0381 | 4.2586 | -0.2205 | +0.0156 |
| 4 | 4.0469 | 4.1002 | +0.0534 | -0.0085 |
| 5 | 4.0541 | 3.9865 | -0.0676 | -0.0119 |
| 6 | 3.9802 | 4.0419 | +0.0617 | -0.0082 |
| 7 | 4.0218 | 4.0648 | +0.0430 | -0.0088 |
| 8 | 4.0052 | 4.0095 | +0.0044 | -0.0099 |
| 9 | 3.9903 | 3.9095 | -0.0809 | -0.0123 |
| 10 | 3.9158 | 3.8254 | -0.0903 | -0.0125 |
| 11 | 3.8193 | 4.0025 | -0.1833 | +0.0148 |
| 12 | 3.9730 | 3.9175 | +0.0555 | +0.0084 |
Rating movement formula
Team VIPR = average - (average - lower partner) * CRF, with CRF = 0.40.
Adjustment = 0.02 / (1 + 10 ^ (2.5 * (winner team VIPR - loser team VIPR))).
Winning partners both receive +adjustment. Losing partners both receive -adjustment.
Score margin is recorded for context but is not currently part of the v0.6 formula.
First game check: winner-loser VIPR diff -0.1249 -> computed delta -0.0134; 4.0300 -0.0134 = 4.0166